Much like he did last year, Francesco Molinari snuck up on everybody on Sunday at Bay Hill. Trailing by five strokes entering the final round, the reigning Open champion fired an eight-under 64 to capture the Arnold Palmer Invitational, his third career US PGA Tour title, all of which have come in his past 12 starts.

Molinari, who teed off 10 groups ahead of the leaders, got off to a hot start, making three birdies and no bogeys on his first seven holes. Just as it looked like he’d cooled off at the par-4 eighth, where he badly missed the green with his approach, Molinari played a deft chip that found the bottom of the cup for another birdie. He made four more on the back nine, including a 43-foot bomb at the 72nd hole that wound up giving him a two-stroke win over England’s Matthew Fitzpatrick, who shot a final-round 71.

“I’m just super glad,” said a shocked Molinari, who just put new clubs in the bag this week. “First week as a Callaway player, so happy to see that the switch I made wasn’t as crazy as some people thought. The clubs are good for me and I showed it this week.

“It’s great, to do it here, to get it done here at this place knowing that my wife and the kids were watching back home, it’s just a special, special one.”

By far the best club in the bag was Molinari’s putter, which he used to hole 146 feet of putts in the final round, the most in his career. The 36-year-old from Italy called it his “best putting round ever”, a bold statement given the way he putted on Sunday at Carnoustie to win his first Major. While Arnie’s event isn’t a Major, it felt just as good as one for Molinari.

“Incredible, it’s high up there with the best wins I’ve had. He [Arnold Palmer] was a special player but most of all a special person and a global icon for the game. For someone like me coming from Italy, he and Jack [Nicklaus] were up there as gods, so to win here is truly special.”

Fitzpatrick wasn’t able to close out his first US Tour victory, but he did finish alone in second. Sungjae Im, Tommy Fleetwood and Rafa Cabrera Bello tied for third. As for Rory McIlroy, it was another final-round dud. The Northern Irishman shot an even-par 72 to finish in a tied for sixth.